Our coop is almost done but we're concerned about where we've placed the entrance door for the chickens. The coop is raised off of the ground and there'll be a ramp for the chickens. The entrance will be a square hole that's been cut out in the middle of the coop floor...does that make sense or is it more advisable to put it at one end? We're feeling as though it will be easy for the chickens to get up into the coop this way but we're worried we haven't thought of every possible scenario that would make the entrance difficult. Thanks in advance for sharing your knowledge!